JP3186164B2 - Air conditioner for seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a seat, and is effective, for example, as an air conditioner for air-conditioning a space around a vehicle seat and inside the seat.

[0002]

2. Description of the Related Art In a conventional automobile air conditioner, outside air is taken in from an outside air intake port opened in an engine room.
Alternatively, air inside the cabin is taken in from the inside air suction port opened in the front of the cabin, and this air is cooled and heated by a heat exchanger,
Air-conditioned air is discharged from the outlet formed in the dash panel in front of the cabin toward the cabin. This conditioned air is convected throughout the cabin regardless of the number of occupants.

Further, Japanese Utility Model Application Laid-Open Nos. 60-51115 and 60-163106 disclose that a plurality of air-conditioned air outlets are formed in a vehicle seat so that the air-conditioned air is discharged from the surface of the vehicle seat. An air conditioner that blows out is disclosed. The air suction port is taken in from the outside air suction port opened in the engine room or the inside air suction port opened in the front of the passenger compartment, as in the above-mentioned conventional example, and the conditioned air blown out from the seat surface first passes through the vicinity of the seat. Air conditioning is performed, but after that, it convects through the entire cabin, heat exchanges with the cabin walls, etc., and the temperature rises, and then is re-inhaled from the inside air intake port or from the air exhaust port formed behind the cabin. It is discharged outside the cabin.

[0004]

However, in the above-mentioned prior art, since the conditioned air is blown out from the dash panel or the outlet formed in the seat to the entire cabin and convected, the passenger feels comfortable. More power is consumed than is required for This is because air conditioning only around the occupant who is originally sitting is enough to give the occupant a sense of comfort, but in reality it is convection in the entire cabin, so the power more than the minimum required power Is consumed.

[0005] Further, when air-conditioning air is blown out from an air outlet formed on a seat surface, the air outlet is blocked when the occupant sits down, so that the air-conditioned air is not sufficiently blown out, resulting in poor air circulation performance. It gets worse. Furthermore, the air introduced into the seat to cool the seat stays in the seat, so that the air gradually warms up, and conversely, the air introduced into the seat to heat the seat becomes inside the seat. It stays and gradually cools down, so that it cannot serve the role of air conditioning in the seat.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, to reduce power consumption, and to air-condition a seat by guiding the blown cool air or warm air into the seat.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an air conditioner for a seat according to the present invention introduces air in a space around a seat from a suction port formed at one end, and to the other end. A wind guide duct for blowing air from the formed outlet toward the surrounding space; and a heat guide for the introduction air provided in the wind guide duct and exchanging heat with the introduced air introduced from the suction port. A heat exchanger that cools or heats the air, at least one of the suction port and the air outlet is disposed near a seat where a seated member sits, and the other port faces the one port via the surrounding space. In a position where
In a seat air-conditioning system for air-conditioning a space around a seat, at least a part of a suction duct portion from the suction port to the heat exchanger and a blow-out from the heat exchanger to the blow-out port in the air guide duct. By arranging at least a part of the duct portion in each of the seats, the seat is cooled or heated by the introduced air and the blown air,
Further, the air introduced into the suction duct and the blown air blown through the blow duct are heat-exchangeable.

According to the seat air conditioner of the present invention, the cool air or the warm air blown out from the outlet is sucked into the inlet disposed opposite to the outlet, so that only the vicinity of the seated occupant is seated. Can be intensively air-conditioned. Further, the cool air or warm air blown out from the outlet is introduced into a suction duct portion disposed in the seat, and the introduced air and
By exchanging heat with the blown air blown out through the blowout duct from the heat exchanger to the blowout port, the seat can be cooled or heated to adjust the temperature.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the seat air conditioner of the present invention is used as an automotive air conditioner will be described below.
FIG. 1 is a cross-sectional view schematically showing the front of the cabin of an automobile. In a cabin space 126 surrounded by a ceiling 106, a windshield 108, and the like, a seat including a seating portion 50, a backrest portion 52, and a headrest 58 is provided. Are fixed to the floor 114 of the vehicle.

The backrest portion 52 is connected to the seating portion 50 so that the inclination angle thereof can be adjusted arbitrarily. The outer shape of the backrest portion 52 is formed by a metal frame 88 and a spring 84. A cushion member 56 is arranged around the frame 88, and the surface thereof is covered with a skin or a cloth skin 54.

The connecting rod 11 is provided above the backrest 52.
6, the headrest 58 is connected so as to be vertically movable. The surface of the headrest 58 is also covered with a skin 57, and a cushion material 59 is packed inside the headrest 58. In the backrest 52, a part of a second duct 66, which is an outlet side of the first duct 62 described later, is located. The second duct 66 extends from the outlet side of the first duct 62, and is disposed continuously from the inside of the seating portion 50 to the inside of the backrest portion 52. In the following, the seating part 5
The second duct inside 0 is referred to as a seat-side second duct 66a, while the second duct inside the backrest 52 is referred to as a backrest-side second duct 66b. The backrest-side second duct 66b extends from the lower end of the backrest 52 toward the upper end. A bellows duct 64 is formed between the second duct 66a on the seat side and the second duct 66b on the backrest. The bellows duct portion 64 is for absorbing the angular displacement of the second duct 66 when the inclination angle of the backrest portion 52 changes.

The seat-side second duct 66a is heat-exchangeable with a seat-introduction duct 221 to be described later, and the backrest-side second duct 66b is heat-exchangeable with a backrest-introduction duct 201 to be described later. Will be described in detail later. FIG. 2 is a diagram showing the internal structure of the headrest 58 in detail. The second protruding from above the backrest 52
One end of the duct 66 is connected to the bellows duct 68, and this bellows duct 68
It is connected to. The core 124 is hollow inside and has a duct function and a core function of the headrest 58. The bellows duct 68 absorbs a relative displacement between the core member 124 and the second duct 66 when the headrest 58 moves up and down.

A third duct 7 is provided at an upper open end of the core member 124.
0 is linked. A leaf spring 122 is disposed at a connection end of the third duct 70, and the leaf spring 122 engages with a notch 128 formed on the inner peripheral surface of the core member 124, so that the third duct 70 is moved. The position can be adjusted vertically.

The third duct 70 is bent in an approximately L-shape, and a bellows 118 is formed at the end thereof. The opening direction of the outlet 72, which is the open end, can be set arbitrarily from the overhead of the occupant to the ceiling of the vehicle due to the bending of the bellows portion 118. In the vicinity of the outlet 72, a punch metal 120 having a plurality of holes is fixed.

The first to third ducts 62, 66, 70
Is made of a resin material, and has a honeycomb structure in which a plurality of spaces are formed in the duct wall so as to extend in the longitudinal direction of the duct. Due to this space, the heat mass of the duct itself is reduced, and the cooling time during maximum cooling can be shortened. The space also has a heat insulating effect, and in particular, the second duct 66 arranged in the backrest 52.
In particular, the effect of blocking the heat given to the seat itself from the solar radiation or the heat from the occupant is great.

On the other hand, the cushion material 5 in the backrest 52
Inside the backrest part introduction duct 201, a first suction port 203 which is an opening end of the backrest part introduction duct 201 is provided at both left and right ends of the backrest part 52. The suction port 203 is opened to the side of the backrest 52 so as not to interfere with the occupant's seating operation.

A backrest introduction duct 201 and a second backrest side heat exchange with the backrest introduction duct 201.
The duct 66b will be described in detail with reference to FIG. First,
The backrest introduction duct 201 has a shape in which a plurality of rectangular parallelepiped portions 205 are sandwiched between two substrate portions 207, and has a lattice-shaped air passage 211 formed therein. The substrate part 207 and the rectangular parallelepiped part 205 are made of a soft material having high thermal conductivity.

An opening 213 is formed at the lower end of the backrest introduction duct 201, and communicates with a branch duct 217 described later via a bellows duct 215. On the other hand, in the backrest side second duct 66b, a plurality of rectangular parallelepiped portions 155 are erected on the substrate portion 157, and the substrate portion 157 is formed.
And the substrate portion 207 of the backrest introduction duct 201 are fixed by bolting or the like. And FIG.
As shown in (A), the rectangular parallelepiped portion 155 of the backrest-side second duct 66b is in close contact with the substrate portion 207 of the backrest introduction duct 201, so that a lattice-shaped air passage 161 is provided.
Are formed. The substrate portion 157 and the rectangular parallelepiped portion 155 are made of a hard rubber material that has low thermal conductivity and does not bend under back pressure by an occupant. Backrest-side second duct 6
An opening (not shown) is formed at the lower end of 6b.
It communicates with the bellows duct portion 64 between the above-mentioned seat portion side second duct 66a.

The manner in which the rectangular parallelepiped portion 155 of the backrest-side second duct 66b is in close contact with the substrate portion 207 of the backrest introduction duct 201 is shown in FIG. In addition to being arranged so as to sandwich the portion 207, as shown in FIG.
205 may be shifted. FIG. 5 (C)
As shown in FIG. 5 (A), the rectangular parallelepiped portion 155 on the backrest side second duct 66b side in FIG. 5 (A) is integrally formed of a soft material having the same high thermal conductivity as the substrate portion 207 of the backrest introduction duct 201, and Plate 1 made of hard rubber material with low hardness
70 can also be implemented. In this case, three sides around the air passage 161 of the backrest-side second duct 66b are made of a soft material having a high thermal conductivity, so that heat exchange becomes easier.

FIG. 6 is a partial sectional view of the seating section 50 of FIG. As shown in FIG.
Is formed by a frame 51, the surface of which is covered with a skin 49, and a cushion material 5
3 are packed. A seat introduction duct 221 is arranged inside the cushion material 53, and second suction ports 223, which are the open ends of the seat introduction duct 221, open upward at both left and right ends of the seat 50. The second suction port 223 has a rectangular shape that is long in the front-rear direction of the vehicle and short in the left-right direction, and does not hinder the seating operation of the occupant.

The seat introduction duct 221 and the seat side second duct 66 which exchanges heat with the seat introduction duct 221.
The configuration of “a” and the arrangement of both of them are the same as those of the above-described backrest introduction duct 201 and the backrest-side second duct 66b, respectively, and therefore description thereof is omitted. However, a bellows duct 225 is formed in the seat introduction duct 221 as shown in FIG. 6, and when the occupant sits down and the cushion material 53 sinks due to the weight, the seat introduction duct 221 is accordingly attached. Can be adjusted downward.

Further, it branches off on the way to the seat introduction duct 221 and communicates with the fourth duct 63, and a first damper 250 is provided at this branch portion. The ratio of the amount of air sucked into the seat introduction duct 221 and the amount of air sucked into the fourth duct 63 can be adjusted. Further, an opening (not shown) is formed on the downstream side of the seat introduction duct 221, and communicates with the branch duct 217 via the bellows duct 229. The branch duct 217 communicates with the fourth duct 63 after the passage from the seat introduction duct 221 and the above-described passage from the backrest introduction duct 201 merge. Further, a second damper 231 is provided at a portion where the passages from the two introduction ducts 201 and 221 join, and the ratio of the air volume sucked from the two introduction ducts 201 and 221 can be adjusted.

On the other hand, the first duct 62 described above is
0 and the first duct 62
A blower fan 74 driven to rotate by an electric motor 76 is disposed at the left and right center positions of the blower fan 74. The rotation of the blower fan 74 generates an air suction force from the suction ports 203 and 223.

In the first duct 62, a blower fan 74 is provided.
A conventionally-known refrigerant evaporator 78 is disposed downstream of the air, and the evaporator 78 removes heat of the air sucked from the suction ports 203 and 223 and cools the air. Further downstream of the evaporator 78, a heater 80 for heating the air using the heat of the engine cooling water is provided. An air mix damper 82 for adjusting the amount of air passing through the heater is rotatably disposed on the front surface of the heater.

The evaporator 78 forms a part of a conventionally known refrigeration cycle, and as shown in FIG. 1, a compressor 90 for compressing a refrigerant, a condenser 92 for cooling a high-temperature and high-pressure refrigerant, and a condenser 92. A gas-liquid separator 94 for separating the separated refrigerant into a liquid refrigerant and a gas refrigerant, and an expansion valve 96 for expanding and reducing the pressure of the separated liquid refrigerant are sequentially connected by a refrigerant pipe.

The heater 80 includes an engine 98 and the radiator 1
The amount of high-temperature cooling water flowing into the heater 80 is controlled by a flow control valve 104. Whether or not the cooling water flows from the engine into the radiator is controlled by a thermostat 102 disposed in the piping.

The air sucked through the suction ports 203 and 223 is air-conditioned to a desired temperature by the evaporator 78 and the heater 80, and the air-conditioning control method is conventionally known. Further, the means for cooling and heating the air is not limited to the evaporator 78 and the heater 80 described above. For example, an electric heat exchanger using a Peltier element can be used.

Next, the operation of the first embodiment will be described. When a passenger turns on a fan switch and an air conditioner switch (not shown), the compressor 90 is driven at the same time as the blower fan 74 rotates. Blower fan 74
The air in the vehicle interior space 126 is sucked in from the first and second suction ports 203 and 223 by the suction force of the air, and is cooled by the evaporator 78. The operation of the evaporator 78 is a conventionally known operation. The cooled air is divided into air passing through the heater 80 and air bypassing the heater 80 according to the degree of rotation of the air mix damper 82.

The heater 80 performs a conventionally known operation, and the air passing through the heater 80 is heated to a predetermined temperature. The air heated by the heater 80 and the heater 8
In the downstream area of the heater 80, the air bypassing the heater 80 is mixed and adjusted to a desired temperature, and the second duct 66 is further divided into a seat-side second duct 66a and a backrest-side second duct 66.
b, and flows through the third duct 70 to the outlet 7
It is blown out from 2. The blown air flows down from the occupant's head toward the feet.

Then, the blown-out conditioned air is sucked into the first suction port 203 and the second suction port 223. This flow of air is indicated by a broken line in the figure. In the conventional air conditioner, the entire vehicle interior space 126 is air-conditioned, whereas in the present embodiment, only the space near the seat is air-conditioned, so-called zone air-conditioning.

The conditioned air sucked from the first suction port 203 is introduced into the backrest introduction duct 201 arranged inside the cushion member 56 in the backrest 52. When the air-conditioned air passes through the lattice-shaped air passage 211, for example, when the air-conditioned air is cooling air for cooling via the substrate portion 207 and the rectangular parallelepiped portion 205 made of a soft material having a high thermal conductivity. The backrest 52 itself can be cooled.

At this time, the conditioned air before being blown out from the outlet 72 flows into the lattice-shaped air passage 161 of the adjacent second back duct 66b. This conditioned air is supplied to the substrate 207 of the backrest introduction duct 201.
, And exchanges heat with the air introduced into the air passage 211 on the side of the backrest introduction duct 201 through the substrate portion 207.

For example, in the case of cooling, since the conditioned air before blowing out normally, that is, the air passing through the air passage 161 of the backrest side second duct 66b is cooler, it is introduced into the backrest introduction duct 201. The backrest 52 can be cooled faster than when only the cooled air is used. Conversely, even if the air passing through the air passage 161 of the backrest-side second duct 66b is too cold to cool, only by slightly exchanging heat with the slightly warmed-in air inside the backrest-introduction duct 201, the delicateness can be improved. Adjustment is possible.

The air passing through the backrest introduction duct 201 is discharged from the opening 213 and flows into the branch duct 217 via the bellows duct 215. On the other hand, the conditioned air sucked from the second suction port 223 is
It is introduced into the seating introduction duct 221 arranged inside the cushion material 53 in the inside. As in the case of the backrest introduction duct 201 and the backrest side second duct 66b described above, heat exchange is performed between the air introduced into the seating introduction duct 221 and the air passing through the seating side second duct 66a. Done. As a result, for example, if the cooling air is
It can cool itself. Seating part introduction duct 221
Is passed through an opening (not shown),
It flows into the branch duct 217 via the bellows duct 229.

In the branch duct 217, the air from the seat introduction duct 221 and the air from the backrest introduction duct 201 merge and flow into the fourth duct 63, where
It is returned to the duct 62. As described above, the conditioned air before being blown out through the seating portion side second duct 66a disposed inside the seating portion 50 and the seating portion introduction duct 22 after being blown out again.
Heat exchange with the air introduced in 1 to adjust the seating portion 5
Air condition 0. The air conditioning air before being blown out through the backrest portion side second duct 66b disposed inside the backrest portion 52 and the air that has been blown out and then introduced into the backrest portion 52 again exchange heat with the backrest portion 52 for adjustment. Can be air-conditioned.

Therefore, more comfortable air-conditioning can be performed by air-conditioning not only the surrounding air but also the seat itself on which the occupant is seated. In addition, the first and second dampers 25
By adjusting the opening of 0,231, the air volume sucked from the backrest introduction duct 201 and the seat introduction duct 221 can be adjusted, and the seat side second duct 66a or the backrest side second duct can be adjusted. 66
The ratio of heat exchange with the conditioned air before blowing out through b can be adjusted. For example, delicate air-conditioning is possible, for example, cooling the backrest portion 52 side mainly and keeping the seating portion 50 at a slightly higher temperature.

According to the results of the study by the present inventors, the surface temperature of the backrest 52 was found to be 26 to
It turned out that about 28 degreeC was comfortable. On the other hand, the seat 5
It has also been found that discomfort occurs when the temperature is too low. For example, in the case of a room temperature of 30 ° C. or more in the middle of summer, the amount of air introduced into the back portion introduction duct 201 is adjusted to adjust the back portion. On the 52 side, the degree of cooling is increased, and after a certain amount of time has passed, after the entire interior of the vehicle has been cooled, the amount of air introduced into the seat introduction duct 221 is adjusted to prevent the seat 50 from being excessively cooled. Adjustments should be made.

Further, the air outlet 72 is provided above the seat, a first suction port 203 for the backrest introduction duct 201 and a second suction port 223 for the seat introduction duct 221 are provided at both ends of the seat. When the occupant is seated, the outlet 72 and the inlets 203 and 223 are not closed. Therefore, the air circulation is good, and the air introduced into the seat for cooling the seat does not stay in the seat, and good air conditioning in the seat can be realized.

The outlet 72 and the inlets 203, 223
Are provided to face each other, so that the efficiency of collecting the cold air is good. That is, the cool air is mostly used for cooling in the vicinity of the occupant, and the amount used for cooling other parts is relatively small, so that power consumption can be reduced. This point is described in detail in Japanese Patent Application No. 3-299276 filed by the applicant of the present invention and will not be described here.

In the above-described embodiment, the outlet 72 is disposed above the inlet 223, and the blown air flows down. However, for example, conditioned air is blown out from the inlet 223 shown in FIG. The air may be sucked from the outlet 72. In this case, the arrangement order of the blower fan 74, the evaporator 78, and the heater 80 is reverse to that shown in FIG. Such a configuration is particularly suitable for performing air conditioning mainly for heating.

Next, a second embodiment will be described. FIG.
As shown in (A) and (B), a first duct member 305 in which a plurality of rectangular parallelepiped portions 303 are erected on a substrate portion 301 and a second duct member 305 in which a plurality of rectangular parallelepiped portions 313 are also erected on a substrate portion 311. The rectangular parallelepiped portion 303 of the first duct member 305 is connected to the substrate 311 of the second duct member 315.
It is superimposed so that it abuts. These first and second duct members 305 and 315 are made of a hard rubber material having a low thermal conductivity, and are fixed to each other by bolting or the like.

Further, two layers of the cooling / heating sheet 321 having a high thermal conductivity are connected to the rectangular parallelepiped portion 313 of the second duct member 315.
The heat and cold sheet 321 and the second duct member 3
15 and the space formed by the backrest introduction duct 2
01 is the suction air passage 317. On the other hand, the space formed by the second duct member 315 and the second duct member 305 becomes the air passage 307 for blowing the backrest-side second duct 66b.

Then, a T-shaped metal plate 323 as shown in FIG. 7 (C) has its head 323a sandwiched between two layers of cooling and heating sheets 321 and its body 323b has an air passage 317 for suction. Further, the second duct member 315 is arranged so as to penetrate through the board portion 311 and reach the air passage 307 for blowing. The metal plate 323 is made of a material having high thermal conductivity, such as copper or aluminum.

Therefore, according to the second embodiment, the conditioned air flowing through the air outlet passage 307 before being blown out from the outlet 72, and after being blown out, are introduced into the backrest introduction duct 201. The air flowing in the suction air passage 317 exchanges heat through the metal plate 323, and the head 323 a of the metal plate 323 transfers heat directly to the cooling / heating sheet 321, so that more effective seating is achieved. Air conditioning can be realized.

Next, a third embodiment will be described. FIG.
As shown in (A) and (B), two flat duct plates 401 and 402 made of a hard rubber material and a two-layer cooling / heating sheet 403 having a high thermal conductivity are formed by a first duct plate. 40
The first, second duct plate 402 and the cooling / heating sheet 403 are arranged in parallel in this order, and these three are connected by a spring member 405 formed in a wavy shape.

One end of the spring member 405 is embedded in the first duct plate 401, penetrates the second duct plate 402 near the center, and the other end is a metal disposed between two layers of the cooling / heating sheet 403. It is engaged with the plate 407. The space formed by the cooling / heating sheet 403 and the second duct plate 402 becomes the suction air passage 417 of the backrest introduction duct 201. On the other hand, the second duct plate 402 and the first duct plate 401
Is formed by the backrest-side second duct 66.
It becomes the air passage 415 for blowing b.

Further, the spring member 405 is made of a metal having a high thermal conductivity and is supported by receiving the back pressure of the occupant.
It has the function of exchanging heat with the air flowing in the suction air passage 417 and transmitting heat to the cold sheet 403 via the metal plate 407.

Next, a fourth embodiment will be described with reference to FIGS.
This will be described with reference to FIG. In the fourth embodiment, FIG.
As shown in (A) and (B), a cooling / heating sheet 505 is bonded to a duct member 503 having a plurality of parallel grooves 501 to form an air passage. Every other groove 501
The space defined by the cooling sheet 505 and the cooling / heating sheet 505 serves as a suction air passage 507 of the backrest introduction duct 201. On the other hand, the space formed by the remaining every other groove 501 and the cooling / heating sheet 505 serves as a blowing air passage 509 of the backrest-side second duct 66b.

Then, as shown in FIG.
Blowing ducts 511 communicating with only the blowing air passage 509 are provided above and below the air passage 03, and the remaining suction air passages 507 are arranged to communicate with the suction duct 513. Therefore, according to the fourth embodiment, the number of duct members 503 may be one, and the conditioned air flowing through the air passage 509 and the air flowing through the air passage 507 are directly connected to each other. Heat can be transferred to the cooling / heating sheet 505.

Further, in the above-described embodiment, the example is for one seat. However, for two or more seats, the blower fan 74, evaporator 78, air mix damper 82, heater 80 And a compressor 90, a condenser 92, a gas-liquid separator 94, an expansion valve 96, a radiator 100
Etc. may be shared.

Further, a solar radiation sensor for measuring the amount of solar radiation, an indoor temperature sensor for measuring the temperature of the air to be sucked in the suction ports 203 and 223, and a temperature setting device for setting the occupant to a desired temperature are provided. The opening degree of the air mix damper 82 or the first and second dampers 250 and 231 may be adjusted based on the input signal.

It should be noted that all of the above embodiments are examples in which the present invention is used as an air conditioner for an automobile, but the present invention is not limited to an air conditioner for an automobile, and is applicable to air conditioning of other seats. It can be used.

[0053]

As described above, by using the seat air conditioner of the present invention, only the area around the seated occupant can be intensively air-conditioned, and the time required to reach the desired temperature can be reduced. At the same time, the required cooling capacity can be reduced. That is, power saving can be achieved and power consumption can be reduced, and cool air or warm air blown out from the outlet is introduced into a suction duct portion provided in the seat, and the introduced air and the heat exchanger By exchanging heat with the blown air blown out through the blowout duct section to the blowout port, the seat can be cooled or heated to adjust the temperature, and better air conditioning can be realized. Has an effect.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a first embodiment in which a seat air conditioner of the present invention is used as an automotive air conditioner.

FIG. 2 is a sectional view showing details of a headrest portion.

FIG. 3 is a partial sectional perspective view of the seat according to the first embodiment.

FIG. 4 is a sectional perspective view of a duct of a heat exchange part.

FIG. 5 is a sectional view showing a configuration of a heat exchange portion.

FIG. 6 is a partial cross-sectional view of the seating portion in FIG.

FIGS. 7A and 7B are cross-sectional views showing the configuration of a heat exchange portion of a second embodiment, and FIG. 7C is a perspective view of a metal plate used in the second embodiment.

FIG. 8A is a cross-sectional view showing a configuration of a heat exchange portion of a third embodiment, and FIG. 8B is a perspective view thereof.

FIG. 9 is a schematic perspective view showing a fourth embodiment.

FIG. 10A is a perspective view showing a configuration of a heat exchange portion of a fourth embodiment, and FIG. 10B is a sectional view thereof.

[Explanation of symbols]

50 ... Seat part, 52 ... Back part, 58
... headrest, 62 ... first duct, 63 ... fourth
Duct, 66: Second duct, 66a: Seating portion side second
Duct 66b: Backrest-side second duct, 70
... the third duct, 72 ... the outlet, 74 ... the blower fan, 78 ... the evaporator, 80 ... the heater,
90: Compressor, 92: Condenser, 161, 211 ... Air passage, 201 ... Back introduction duct, 20
3 ... first suction port, 221 ... seat introduction duct, 2
23 ... second suction port

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-623 (JP, A) JP-A 54-74156 (JP, U) JP-A 56-35407 (JP, U) 52254 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60H 1/34 A47C 7/74 B60H 1/32 614

Claims (1)

(57) [Claims] 1. An air guide duct for introducing air in a space around a seat from an inlet formed on one end side and blowing air toward the surrounding space from an air outlet formed on the other end side, A heat exchanger that is disposed in the air guide duct and exchanges heat with the introduced air introduced from the suction port to cool or heat the introduced air; and at least one of the suction port and the outlet In a seat air conditioner for arranging a mouth in the vicinity of a seating portion on which a occupant sits, and arranging the other mouth at a position facing the one mouth via the surrounding space, and air-conditioning the surrounding space of the seat, Of the wind duct, at least a part of a suction duct portion from the suction port to the heat exchanger and at least a part of a blow duct portion from the heat exchanger to the blow port are provided in the seat. By doing before The seat is cooled or heated by the introduced air and the blown air, and further, the introduced air introduced into the suction duct portion and the blown air blown out through the blowout duct portion can be heat-exchanged. An air conditioner for a seat, comprising: